Question

solve solve this question I will give you brainlist​

Answer 1

Step-by-step explanation:

capacity of tank is its volume and volume of a hemisphere

$= \frac{2}{3} \pi {r}^{3}$

here r = 3.5m= 7/2m

so

$v = \frac{2}{3} \times \frac{22}{7} \times \frac{7}{2} \times \frac{7}{2} \times \frac{7}{2} = \frac{11}{3} \times \frac{49}{2} = \frac{539}{6} = 89.82$

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